Santino (chimpanzee)

Zookeepers noticed, after observing Santino behind blind glass, that the chimp had been busy stockpiling ammunition in anticipation of the visitors, dragging stones from a protective moat and even thumping chunks of concrete into rough discs. He made the piles of stones only on the part of his island facing the crowds. Dr. Mathias Osvath, a cognitive zoologist from Lund University, together with Elin Karvonen, studied the phenomenon, and their studies suggest that Santino's behaviour shows that forward planning and premeditated deception is not a uniquely human trait.

To control his behaviour, and keep his hormone levels down, zookeepers castrated Santino. Since then, Santino has been observed to be more playful and is growing a "Buddha belly".[3]

On 19 March 2009, Santino and his attacks were mentioned as a part of "when animals attack our morals" on The Colbert Report, which brought to light the poor understanding that exists between man and his ancestral cousin. Also discussed was how these incidents are not limited to "animals" alone, but humans in general.

In Australia's Fairfax newspapers on 20 December 2009, staff writer Andrew Tate] made a humorous case that Santino's behaviour elevated him to the status of environmental activist of the year, given the lack of global political action on climate change and environmental degradation. Despite Santino's unfortunate castration, the article argued that politicians and voters needed to emulate Santino's disgruntled example en masse to ensure better outcomes and improve the environment.

• May 2009 Scientific American